By JADE WATKINS
Close call: Sparks attempted to ruin the wedding between Blair Waldorf and Prince Louis on last night's show
Her identity has been shrouded in mystery for the past five years.
But now the identity of the girl who infamously signs off 'xoxo' has finally being revealed.
In last night's 100th landmark episode of Gossip Girl, villainous rich girl Georgina Sparks was spectacularly unveiled as the girl behind the gossip.
Revealed: Georgina Sparks, played by Michelle Tratchenberg, was revealed as 'Gossip Girl' on last night's landmark 100th episode
During the highly anticipated show, Sparks' secret identity was revealed when she was seen tapping away at her computer and signing off on her popular blog 'Xoxo, Gossip Girl'.
For five years, the voice of Gossip Girl has always been actress Kristen Bell.
The news may come as little surprise to dedicated fans of the show.
Sparks, who is played by actress Michelle Tratchenberg, has continued to successfully wreak havoc in the Upper East Side season after season.
In love: Other drama in the episode included Blake Lively's character Serena Van der Woodsen's renewing her love for Dan Humphrey (Penn Badgley)
And it was no different last night, as she attempted to ruin Blair Waldorf's (Leighton Meester) royal wedding to Prince Louis.
Sparks cunningly taped Blair's ex-boyfriend Chuck Bass (Ed Westwick) professing his love to his former girlfriend ahead of the nuptials, and then played the audio to the entire wedding party.
Despite going through with their vows, a furious Price Louis later proceeded to tell Blair that their marriage will be a 'loveless one.'
Still in love: Sparks cunningly taped Blair's ex-boyfriend Chuck Bass (Ed Westwick) professing his love to his former girlfriend ahead of the nuptials
Other drama in the episode included Blake Lively's character Serena Van der Woodsen's renewing her love for Dan Humphrey (Penn Badgley).
There were hints of Sparks big revelation back in November last year.
Michelle's character was reported to be creating a stir in the fifth season of the show.
Stunning: Blair's wedding dress was certainly not a disappointment
'It's always amazing coming back to Gossip Girl. We're a family. Even if Georgina always tries to break it up,' Michelle told TVLine.com at the time.
'I can't say how many episodes [I'm doing],' she added. 'But there will definitely be a healthy dose of Ms. Sparks, and to be a part of the 100th episode, a big milestone, is very special.'
According to the show's producer Josh Safran, Georgina's storyline is 'unlike anything that she has done before on the show.
'Of course, she still is Georgina and all that implies, it's just taking that in a new direction,' he told the website.
Celebration: The cast of the show were seen celebrating the 100th episode milestone last week